Pottery, Glass, and the Pictorial Habit between Late Republic and Early Empire

In the period of classical antiquity, art objects, especially objects of ceramic and glass, were not always used as image bearers to the same extent. Depending upon the prevalent pictorial habit, the phenomenon of images was by no means de rigueur, and imagery was used optionally depending upon the historical, political, and social situation. This chapter focuses on the late Roman Republic and the early imperial period. Like no other period of antiquity, the time span between the second century bce and the first century ce was a phase of accelerated change and upheaval but also one of consolidation. In this period, a pictorial habit developed that differed enormously from the artistic practice of the preceding period and that also continued into the imperial period. Furthermore, imagery was no longer limited to consumption by the elite class but was also available to the broader population. The development of ceramic and glass as visual media provides an excellent example of the profound changes in the culture of the image.

Impact of COVID-19 Pandemic on Earnings Management: An Evidence from Financial Reporting in European Firms

The aim of this study is to determine the impact of COVID-19 pandemic on earnings management practices. Focusing on a sample of 2,031 firms listed in 15 European countries, the study uses three discretionary accrual metrics as a proxy for earnings management ( Dechow et al., 1995 ; Kothari et al., 2005 ; McNichols, 2002 ) models. To this end, ordinary least squares (OLS) regressions are applied to compare earnings management during the pre-pandemic period (2017q1–2019q4) and the pandemic period (2020q1–2020q4). The results indicate that the sample firms tend to manage earnings during the pandemic period than during the preceding period. This finding implies a reduced reliability of the financial reports during the COVID-19 pandemic. Further analysis provides evidence of significant income-increasing earnings management during 2020. This finding suggests that firms manage earnings upward by alleviating the level of reported losses to rebuild investor and stakeholder confidence needed to support the economic recovery.

On MSE-Optimal Circular Crossover Designs

In crossover designs, each subject receives a series of treatments, one after the other in p consecutive periods. There is concern that the measurement of a subject at a given period might be influenced not only by the direct effect of the current treatment but also by a carryover effect of the treatment applied in the preceding period. Sometimes, the periods of a crossover design are arranged in a circular structure. Before the first period of the experiment itself, there is a run-in period, in which each subject receives the treatment it will receive again in the last period. No measurements are taken during the run-in period. We consider the estimate for direct effects of treatments which is not corrected for carryover effects. If there are carryover effects, this uncorrected estimate will be biased. In that situation, the quality of the estimate can be measured by the mean square error, the sum of the squared bias and the variance. We determine MSE-optimal designs, that is, designs for which the mean square error is as small as possible. Since the optimal design will in general depend on the size of the carryover effects, we also determine the efficiency of some designs compared to the locally optimal design. It turns out that circular neighbour-balanced designs are highly efficient.

The Impact of the COVID-19 Pandemic on the Composition of Dietary Supplements and Functional Foods Notified in Poland

The COVID-19 pandemic has exerted a strong impact on numerous areas of everyday life. The aim of this study was to check how the pandemic influenced the composition of dietary supplements and other functional food products placed on the market till March 2021, compared to 2019. For this purpose, data concerning the registered products and reports of popularity of online searches of terms connected with vitamins and minerals were used. The results of the study made it possible to determine the group of ingredients especially popular during the pandemic. Their use in products after the announcement of the pandemic was significantly higher than in the preceding period. In conclusion, it can be shown that the pandemic changed the ingredients used in functional foods—mainly as far as vitamins and minerals are concerned. The highest proportional increase in its use in dietary supplements was noted for potassium. Personalized therapy has also become more popular, promoted by one of the manufacturers of dietary supplements active during the pandemic. Moreover, different phases of the pandemic were characterized by the popularity of different ingredients among the consumers—first, these were immunity-boosting ingredients, then those that improved psychological functions, and finally mixtures with universal health effects.

How many lives do COVID vaccines save? Evidence from Israel.

Background: In December 2020, Israel began a mass vaccination program with the rapid rollout of the Pfizer-BioNTech COVID-19 BNT162b2 vaccine for adults in Israel. The campaign vaccinated fewer people than necessary for herd immunity. However, at the same time, government stringency measures in terms of closing public life were decreased. Real-world observational data were used to examine the effect of mass vaccination on Covid-19 mortality. Methods: The study period to examine the effect of vaccination on mortality was chosen to capture when at least 90% of the population over age 70 were vaccinated for less than seven months. Projected deaths as expected from vaccine efficacy and actual mortality data were compared for the study population with examination of potential confounding effects of government stringency. Average government stringency (Oxford Stringency Index) was calculated in the study period and the preceding period of the pandemic. Potential confounding effects of an age shift in the distribution of deaths were examined by analyzing the distributions of deaths and cases before and after the study period. Results: Confirmed deaths from COVID-19 in the population over 70 after mass vaccination were recorded as 370, versus 408 expected from applying person-days of vaccine efficacy, and 5,120 estimated without vaccinations. Conclusions: Vaccines against COVID-19 saved more lives than expected by simply applying individual vaccine efficacy to the vaccinated population in Israel, despite a loosening of government stringency.

Child mortality in England during the COVID-19 pandemic

ObjectivesUsing the National Child Mortality Database (NCMD), this work aims to investigate and quantify the characteristics of children dying of COVID-19, and to identify any changes in rate of childhood mortality during the pandemic.DesignWe compared the characteristics of the children who died in 2020, split by SARS-CoV-2 status. A negative binomial regression model was used to compare mortality rates in lockdown (23 March–28 June), with those children who died in the preceding period (6 January–22 March), as well as a comparable period in 2019.SettingEngland.ParticipantsChildren (0–17 years).Main outcome measuresCharacteristics and number of the children who died in 2020, split by SARS-CoV-2 status.Results1550 deaths of children between 6th of January and 28 June 2020 were notified to the NCMD; 437 of the deaths were linked to SARS-CoV-2 virology records, 25 (5.7%) had a positive PCR result. PCR-positive children were less likely to be white (37.5% vs 69.4%, p=0.003) and were older (12.2 vs 0.7 years, p<0.0006) compared with child deaths without evidence of the virus. All-cause mortality rates were similar during lockdown compared with both the period before lockdown in 2020 (rate ratio (RR) 0.93 (0.84 to 1.02)) and a similar period in 2019 (RR 1.02 (0.92 to 1.13)).ConclusionsThere is little to suggest that there has been excess mortality during the period of lockdown. The apparent higher frequency of SARS-CoV-2-positive tests among children from black, Asian and minority ethnic groups is consistent with findings in adults. Ongoing surveillance is essential as the pandemic continues.

Heavy metal justice?: Calibrating the economic and aesthetic accreditation of the heavy metal genre in the pages of Rolling Stone, 1980–91: Part two 1986–911

Drawing on a comprehensive sample, composed of album reviews, lead or feature articles and interviews, drawn from the RS archive, my research, in Part Two of this article, shows how heavy metal in the period 1986–91 acquires a notable level of critical or aesthetic legitimation, which it was largely denied in the preceding period, 1980–85. However, this aesthetic as opposed to economic accreditation is conferred on particular bands and album releases rather than the genre as a whole, particularly those emerging from the thrash underground, such as Metallica and Megadeth, with the former receiving their first lead feature in Rolling Stone in January 1989, entitled ‘Heavy metal justice’. It is therefore somewhat ironic that this aesthetic approbation reaches a symbolic plateau with Robert Palmer’s **** review of Metallica’s ‘black album’, an album that in retrospect can be seen to announce a ‘crossover’ strategy that allowed the band to find a wider audience beyond the thrash underground.

Potentially inappropriate medications and medication combinations before, during and after hospitalizations: an analysis of pathways and determinants in the Swiss healthcare setting

Background A hospitalization phase represents a challenge to medication safety especially for multimorbid patients as acute medical needs might interact with pre-existing medications or evoke adverse drug effects. This project aimed to examine the prevalence and risk factors of potentially inappropriate medications (PIMs) and medication combinations (PIMCs) in the context of hospitalizations. Methods Analyses are based on claims data of patients (≥65 years) with basic mandatory health insurance at the Helsana Group, and on data from the Hirslanden Swiss Hospital Group. We assessed PIMs and PIMCs of patients who were hospitalized in 2013 at three different time points (quarter prior, during, after hospitalization). PIMs were identified using the PRISCUS list, whereas PIMCs were derived from compendium.ch. Zero-inflated Poisson regression models were applied to determine risk factors of PIMs and PIMCs. Results Throughout the observation period, more than 80% of patients had at least one PIM, ranging from 49.7% in the pre-hospitalization, 53.6% in the hospitalization to 48.2% in the post-hospitalization period. PIMCs were found in 46.6% of patients prior to hospitalization, in 21.3% during hospitalization, and in 25.0% of patients after discharge. Additional medication prescriptions compared to the preceding period and increasing age were the main risk factors, whereas managed care was associated with a decrease in PIMs and PIMCs. Conclusion We conclude that a patient’s hospitalization offers the possibility to increase medication safety. Nevertheless, the prevalence of PIMs and PIMCs is relatively high in the study population. Therefore, our results indicate a need for interventions to increase medication safety in the Swiss healthcare setting.

Assessment of the COVID-19 Lockdown Effects on Spectral Aerosol Scattering and Absorption Properties in Athens, Greece

COVID-19 is evolving into one of the worst pandemics in recent history, claiming a death toll of over 1.5 million as of December 2020. In an attempt to limit the expansion of the pandemic in its initial phase, nearly all countries imposed restriction measures, which resulted in an unprecedented reduction of air pollution. This study aims to assess the impact of the lockdown effects due to COVID-19 on in situ measured aerosol properties, namely spectral-scattering (bsca) and absorption (babs) coefficients, black carbon (BC) concentrations, single-scattering albedo (SSA), scattering and absorption Ångström exponents (SAE, AAE) in Athens, Greece. Moreover, a comparison is performed with the regional background site of Finokalia, Crete, for a better assessment of the urban impact on observed differences. The study examines pre-lockdown (1–22 March 2020), lockdown (23 March–3 May 2020) and post-lockdown (4–31 May 2020) periods, while the aerosol properties are also compared with a 3–4 year preceding period (2016/2017–2019). Comparison of meteorological parameters in Athens, between the lockdown period and respective days in previous years, showed only marginal variation, which is not deemed sufficient in order to justify the notable changes in aerosol concentrations and optical properties. The largest reduction during the lockdown period was observed for babs compared to the pre-lockdown (−39%) and to the same period in previous years (−36%). This was intensified during the morning traffic hours (−60%), reflecting the large decrease in vehicular emissions. Furthermore, AAE increased during the lockdown period due to reduced emissions from fossil-fuel combustion, while a smaller (−21%) decrease was observed for bsca along with slight increases (6%) in SAE and SSA values, indicating that scattering aerosol properties were less affected by the decrease in vehicular emissions, as they are more dependent on regional sources and atmospheric processing. Nighttime BC emissions related to residential wood-burning were slightly increased during the lockdown period, with respect to previous-year means. On the contrary, aerosol and pollution changes during the lockdown period at Finokalia were low and highly sensitive to natural sources and processes.